<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>14_边框线和圆角</title>
    <style>
      * {
        padding: 0;
        margin: 0;
      }
      .container {
        width: 100%;
        height: 100vh;
        background-color: white;
        padding: 20px 50px;
        box-sizing: border-box;
      }
      .title {
        margin: 0 auto;
        height: 50px;
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: end;
      }
      .title :nth-child(1) {
        font-size: 30px;
        font-weight: bolder;
      }
      .title :nth-child(2) {
        color: #dd5b49;
        font-size: 20px;
        font-weight: bolder;
      }
      .form {
        margin-top: 50px;
      }
      .form_item {
        width: 100%;
        box-sizing: border-box;
        padding: 10px 30px;
      }
      .form_item input {
        width: 100%;
        height: 50px;
        border: none;
        border-bottom: 1px solid #dd5b49;
      }
      .btn_form {
        width: 100%;
        height: 60px;
        box-sizing: border-box;
        padding: 10px 30px;
      }
      .btn_form button {
        width: 100%;
        height: 100%;
        color: white;
        background-color: #dd5b49;
        border-radius: 30px;
        border: none;
      }
    </style>
  </head>
  <body>
    <div class="container">
      <div class="title">
        <span>手机号登录</span>
        <span>账号登录</span>
      </div>
      <!-- 表单输入 -->
      <div class="form">
        <div class="form_item">
          <input placeholder="请输入手机号" type="text" />
        </div>
        <div class="form_item">
          <input placeholder="请输入验证码" type="password" />
        </div>
      </div>

      <div class="btn_form">
        <button>登录</button>
      </div>
    </div>
  </body>
</html>
